M5-21, Autotex Standard 21" Wiper - Replaces 31-21

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MSRP: $7.99
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  • M5-21
  • Pre-installed connector fits 9x3 hooks arms. Included adapter fits 9x4 hook, 1/4" and 3/16" pin, and bayonet wiper arms
  • All-steel frame for durability. Aerodynamic frame to prevent wind lift
  • Compression-molded, 100% natural rubber
  • Rust-resistant stainless steel spline assures rubber element is secure to frame

Replaces 31-21

Autotex Standard 16" Wiper:  M5-16
Autotex Standard 18" Wiper:  
Autotex Standard 19" Wiper:  
Autotex Standard 20" Wiper:  
Autotex Standard 22" Wiper:  M5-22
Autotex Standard 24" Wiper:  
Autotex Standard 26" Wiper:  
Autotex Standard 28" Wiper:  


How Often Should I Change my Wipers?


Stay safe with a clear windshield 

One of the most important safety features of your vehicle isn't the latest computer gizmo or gadget. Introduced over a century ago, your car's windshield wipers deliver a clear view of the road, which is paramount to safe driving. Without clear sight lines of the road and your surroundings, your safety and the safety of your passengers are compromised.


When should I change my wipers? 

Experts recommend changing your wipers on a regular basis, at least every six months. If your wipers aren't clearing your windshield effectively, you should get new wiper blades installed immediately. 

Changing weather - time to check your wipers 

As the seasons change, take time to inspect your wipers for signs of wear - the snow and ice of winter are tough on your wipers as is the summer sun. Examine your windshield wipers before winter (or the rainy season) arrives to ensure that your wipers are ready to perform the next time snow or rain begins to fall. Be sure to check your wipers again in the spring to make sure that your wipers have made it through the long winter and are ready for a summer full of road trips and vacations. 

What to look for 

When inspecting your windshield wipers, there are many signs of wear to look for. Some you will discover upon physically examining your blades while other problems will become apparent when you use your wipers.  


Worn and dirty wiper blades are a major cause of streaking 


If your wiper blades go unused for a long period of time, they can develop a curvature that causes them to not make proper contact with the windshield. This can result in a skipping or chattering sound when you use them.  


Cold weather and freezing temperatures make the rubber hard and brittle, which can result in your wiper blades splitting. 


If there is buildup of dust, dirt or other debris on the windshield glass, the wipers won't make a smooth pass and can make a squeaking sound. 

What to do 

The remedies for fixing streaking/smearing, squeaking and skipping/chattering windshield wiper blades are the same. Keep your windshield clean and free of dirt, dust and debris. Avoid operating your wipers on a dry windshield. If the windshield isn't wet enough when you run the wiper blades, it can cause skipping that creates squeaky wipers. Clean your wiper blades with washer solvent or water to help eliminate streaks and smears.


If you put glass treatment on your windshield, your wipers may squeak or skip/chatter. If this happens, remove the product from your windshield. These treatments can cause an accumulation on your windshield that can result in squeaking wipers.


Check the wiper blades to make sure they are working properly and aren't bent. If the blades are damaged, consider replacing them.
In the case of splitting wipers, once your windshield wipers have started to split, you must replace them. The split will just get worse and will lead to poor wiping performance when it matters most - while driving in rain, snow or ice.



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